Roots & Factorials500 draws with two more keys: the square root of a square, and the factorial (5! is 120). Each needs one or both.500 puzzles · Extra puzzles
Numbered #1 to #500. Play them in any order, each once. Your first try is the one that counts.
Its own leaderboard: total points, then stars for the shortest way, then time.
Roots & Factorials · leaderboard
Each puzzle’s first try counts. Ties go to stars, then to the least time.